Fan for ventilation



v (No Model.)

H. O. KOONT'Z; FAN FOR VENTILATION.

No. 415,839. Patehted Nov. 2 1889.

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UNITED STATES PATENT OFFICE.

HENRY COLUMBUS KOONTZ, OF IVAYNESBOROUGH, PENNSYLVANIA.

FAN FOR VENTILATION.

SPECIFICATION forming part of Letters Patent No. 415,839, dated. November 26, 1889. Application filed August 6, 1889 Serial No. 319,939. (No model.)

To aZZ whom it may concern.-

Be it known that I, HENRY COLUMBUS KOONTZ, a citizen of the United States, residing at Vvaynesborough, in the county of Franklin and State of Pennsylvania, have invented a new and useful Fan or Ventilator, of which the following is a specification.

My invention relates to a fan or ventilator for use in connection with invalids bedsteads, chairs, &e., to enable either the invalid or, the attendant to produce a circulation of air.

In the drawings, Figure l is a side view of my device applied to a bedstead. Fig. 2 is a front view of the same. Referring by letter to the drawings, A des- 1 gn ates a bedstead, to the head-board of which are attached the angular or L-shaped supporting-brackets B of my improved fan, said brackets terminating at their vertical portions in perforated securingplates. The outer or free ends of the said brackets are provided with bearings, in which is mounted the shaft C.

D D are fans, (of wood or other light material,) to which are wired the arms (1 d, (preferably light-iron rods,) secured at the upper ends to the said shaft 0. The said fans are disposed at an angle of about forty-five degrees to each other, and it will be seen that if the shaft 0 is oscillated in its bearings the fans will be operated similarly.

E designates an angle-lever secured to the shaft 0, comprising the horizontal arm 0, to which is attached the end of the operatingcord G, and the vertical arm 0', to which is attached one end of the spiral spring H, the

. other end of which is attached to the support B, as shown by the drawings.

Instead of providing the an gle-lever, as d escribed, two independent levers may be secured to the shaft at the desired angle to each other, as it will be seen that this arrangement will accomplish the same result.

IVhen the cord G is pulled down upon, the fans will be swung away from the head of the bed, and when the said cord is released the spring will draw the said fans back to the first posit-ion. By a succession of pulls at regular intervals the fans may be oscillated with but very little exertion to the operator. The cord may be operated by hand or a treadle may be attachedto the lower end of the same to enable it to be operated by footpower.

The device is extremely simple, and it will be seen that it may be applied to the back of a chair with the same facility with which it is attached to the head-board of a bedstead.

I am aware that it is not new to provide fans for the purpose named to be applied to the head of a bedstead; but the peculiar arrangement of the parts as herein described is,I believe, novel, and although various means may be provided for operating the mechanism, as herein described, I have shown the simplest form, which is designed to be very cheaply manufactured.

Having thus described the construction of my invention, I claim The herein-described fan, consisting of the in verted- L-shaped supporting-brackets B, terminating in their rear vertical portions in secu rin g-plates,shaft C,'loosely mounted in bearings in the ends thereof, fans D, secured thereto and set at an angle to each other, arms d d, fastened to the said fans and secured at the ends to the said shaft, for the purpose named, angle-lever E, having the horizontal arm 0, and the vertical arm 0', spiral spring II, secured at one end to the said arm 0' and at the other end to the support B, and the operating-cord G, attached to the said arm 0, substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

HENRY COLUMBUS KOONTZ,

lVitnesses:

IVILLIAM Z. LITTLE, ALF. N. RUssELL. 

